﻿#region ... Copyright Notice ...
/*
   Copyright 2008 Tyler Jensen

	Author: Tyler Jensen    http://www.tsjensen.com/blog

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
 */
#endregion

using System;
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
using System.Text;
using Atrax.Configuration;

namespace Atrax.Consumers
{
	public static class MasterClientFactory
	{
		const string endpointConfigurationName = "Atrax.Web.Master.Service";
		static object locker = new object();
		static ServerListConfigCollection servers = null;
		static int lastIndex = 0;

		public static MasterClient Create()
		{
			lock (locker)
			{
				if (servers == null) servers = GetConfig(); //initialize masters
				int nextIndex = lastIndex + 1;
				if (nextIndex >= servers.Count) nextIndex = 0;
				string address = servers[nextIndex].Url;
				lastIndex = nextIndex;
				return new MasterClient(endpointConfigurationName, address);
			}
		}

		static ServerListConfigCollection GetConfig()
		{
			ServerListConfigurationSection config = (ServerListConfigurationSection)(System.Configuration.ConfigurationManager.GetSection("masterServers"));
			return config.ServerList;
		}
	}
}
